Connection problems with secondary computer

Hi
the key code is the security code or the password that is enabled in the router,are you trying to connect to you own comcast network or to someone elses??
if you are conecting to your own comcast network then you need to log into the computer which can go online using you comcast box,once you are in that computer you need to go ahead and click on start,run in the box type in cmd and hit enter,it shud open a black box for you in this black box go ahead and check the default gateway an example of default gateway wud be like this no 192.168.1.1,make a note of the default gateway and open an internet explorer page now type the default gateway in the address box without http,it shud open the router page for you from comcast,it will tell you to put in the user name and password,the default for comcast is username is comcast and password is 1234 incase you cannot login you can contact comcast so that they can reset the password for you,once you are in this page you will see the wireless setting click on it and there you will see something wghich says wireless security or wep key or authentication key that is the key code..u can now use this key code to connect to the network....
if you are trying to conect to someone elses network thent he person who has setup the wireles comcast network will be able to give you the network key...

vedhick